Sigelei TOP 1 230W Box Mod looks revolutionary and different from the previous Sigelei generations and besides it's the first box mod using the big round screen with high quality. It can achieve max 230 watt with dual 18650 batteries and more importantly it has the microsecond output function and can make your daily vaping more impressive and comfortable. Right now it has black and gunmetal versions and features 3 different power modes, which respectively are strong output mode, regular output mode and soft output mode.